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Merge branch 'fa/remote-svn'

A GSoC project.

* fa/remote-svn:
  Add a test script for remote-svn
  remote-svn: add marks-file regeneration
  Add a svnrdump-simulator replaying a dump file for testing
  remote-svn: add incremental import
  remote-svn: Activate import/export-marks for fast-import
  Create a note for every imported commit containing svn metadata
  vcs-svn: add fast_export_note to create notes
  Allow reading svn dumps from files via file:// urls
  remote-svn, vcs-svn: Enable fetching to private refs
  When debug==1, start fast-import with "--stats" instead of "--quiet"
  Add documentation for the 'bidi-import' capability of remote-helpers
  Connect fast-import to the remote-helper via pipe, adding 'bidi-import' capability
  Add argv_array_detach and argv_array_free_detached
  Add svndump_init_fd to allow reading dumps from arbitrary FDs
  Add git-remote-testsvn to Makefile
  Implement a remote helper for svn in C
  • Loading branch information...
commit 530f237500ba00c03fee23c2db599870ff62c196 2 parents 8de8f9f + e99d012
@peff peff authored
View
1  .gitignore
@@ -125,6 +125,7 @@
/git-remote-fd
/git-remote-ext
/git-remote-testgit
+/git-remote-testsvn
/git-repack
/git-replace
/git-repo-config
View
21 Documentation/git-remote-helpers.txt
@@ -98,6 +98,20 @@ advertised with this capability must cover all refs reported by
the list command. If no 'refspec' capability is advertised,
there is an implied `refspec *:*`.
+'bidi-import'::
+ The fast-import commands 'cat-blob' and 'ls' can be used by remote-helpers
+ to retrieve information about blobs and trees that already exist in
+ fast-import's memory. This requires a channel from fast-import to the
+ remote-helper.
+ If it is advertised in addition to "import", git establishes a pipe from
+ fast-import to the remote-helper's stdin.
+ It follows that git and fast-import are both connected to the
+ remote-helper's stdin. Because git can send multiple commands to
+ the remote-helper it is required that helpers that use 'bidi-import'
+ buffer all 'import' commands of a batch before sending data to fast-import.
+ This is to prevent mixing commands and fast-import responses on the
+ helper's stdin.
+
Capabilities for Pushing
~~~~~~~~~~~~~~~~~~~~~~~~
'connect'::
@@ -286,7 +300,12 @@ terminated with a blank line. For each batch of 'import', the remote
helper should produce a fast-import stream terminated by a 'done'
command.
+
-Supported if the helper has the "import" capability.
+Note that if the 'bidi-import' capability is used the complete batch
+sequence has to be buffered before starting to send data to fast-import
+to prevent mixing of commands and fast-import responses on the helper's
+stdin.
++
+Supported if the helper has the 'import' capability.
'connect' <service>::
Connects to given service. Standard input and standard output
View
8 Documentation/technical/api-argv-array.txt
@@ -53,3 +53,11 @@ Functions
`argv_array_clear`::
Free all memory associated with the array and return it to the
initial, empty state.
+
+`argv_array_detach`::
+ Detach the argv array from the `struct argv_array`, transfering
+ ownership of the allocated array and strings.
+
+`argv_array_free_detached`::
+ Free the memory allocated by a `struct argv_array` that was later
+ detached and is now no longer needed.
View
5 Makefile
@@ -495,6 +495,7 @@ PROGRAM_OBJS += sh-i18n--envsubst.o
PROGRAM_OBJS += shell.o
PROGRAM_OBJS += show-index.o
PROGRAM_OBJS += upload-pack.o
+PROGRAM_OBJS += remote-testsvn.o
# Binary suffix, set to .exe for Windows builds
X =
@@ -2449,6 +2450,10 @@ git-http-push$X: revision.o http.o http-push.o GIT-LDFLAGS $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
+git-remote-testsvn$X: remote-testsvn.o GIT-LDFLAGS $(GITLIBS) $(VCSSVN_LIB)
+ $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS) \
+ $(VCSSVN_LIB)
+
$(REMOTE_CURL_ALIASES): $(REMOTE_CURL_PRIMARY)
$(QUIET_LNCP)$(RM) $@ && \
ln $< $@ 2>/dev/null || \
View
20 argv-array.c
@@ -68,3 +68,23 @@ void argv_array_clear(struct argv_array *array)
}
argv_array_init(array);
}
+
+const char **argv_array_detach(struct argv_array *array, int *argc)
+{
+ const char **argv =
+ array->argv == empty_argv || array->argc == 0 ? NULL : array->argv;
+ if (argc)
+ *argc = array->argc;
+ argv_array_init(array);
+ return argv;
+}
+
+void argv_array_free_detached(const char **argv)
+{
+ if (argv) {
+ int i;
+ for (i = 0; argv[i]; i++)
+ free((char **)argv[i]);
+ free(argv);
+ }
+}
View
2  argv-array.h
@@ -18,5 +18,7 @@ void argv_array_pushf(struct argv_array *, const char *fmt, ...);
void argv_array_pushl(struct argv_array *, ...);
void argv_array_pop(struct argv_array *);
void argv_array_clear(struct argv_array *);
+const char **argv_array_detach(struct argv_array *array, int *argc);
+void argv_array_free_detached(const char **argv);
#endif /* ARGV_ARRAY_H */
View
3  contrib/svn-fe/svn-fe.c
@@ -10,7 +10,8 @@ int main(int argc, char **argv)
{
if (svndump_init(NULL))
return 1;
- svndump_read((argc > 1) ? argv[1] : NULL);
+ svndump_read((argc > 1) ? argv[1] : NULL, "refs/heads/master",
+ "refs/notes/svn/revs");
svndump_deinit();
svndump_reset();
return 0;
View
53 contrib/svn-fe/svnrdump_sim.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+"""
+Simulates svnrdump by replaying an existing dump from a file, taking care
+of the specified revision range.
+To simulate incremental imports the environment variable SVNRMAX can be set
+to the highest revision that should be available.
+"""
+import sys, os
+
+
+def getrevlimit():
+ var = 'SVNRMAX'
+ if os.environ.has_key(var):
+ return os.environ[var]
+ return None
+
+def writedump(url, lower, upper):
+ if url.startswith('sim://'):
+ filename = url[6:]
+ if filename[-1] == '/': filename = filename[:-1] #remove terminating slash
+ else:
+ raise ValueError('sim:// url required')
+ f = open(filename, 'r');
+ state = 'header'
+ wroterev = False
+ while(True):
+ l = f.readline()
+ if l == '': break
+ if state == 'header' and l.startswith('Revision-number: '):
+ state = 'prefix'
+ if state == 'prefix' and l == 'Revision-number: %s\n' % lower:
+ state = 'selection'
+ if not upper == 'HEAD' and state == 'selection' and l == 'Revision-number: %s\n' % upper:
+ break;
+
+ if state == 'header' or state == 'selection':
+ if state == 'selection': wroterev = True
+ sys.stdout.write(l)
+ return wroterev
+
+if __name__ == "__main__":
+ if not (len(sys.argv) in (3, 4, 5)):
+ print "usage: %s dump URL -rLOWER:UPPER"
+ sys.exit(1)
+ if not sys.argv[1] == 'dump': raise NotImplementedError('only "dump" is suppported.')
+ url = sys.argv[2]
+ r = ('0', 'HEAD')
+ if len(sys.argv) == 4 and sys.argv[3][0:2] == '-r':
+ r = sys.argv[3][2:].lstrip().split(':')
+ if not getrevlimit() is None: r[1] = getrevlimit()
+ if writedump(url, r[0], r[1]): ret = 0
+ else: ret = 1
+ sys.exit(ret)
View
342 remote-testsvn.c
@@ -0,0 +1,342 @@
+#include "cache.h"
+#include "remote.h"
+#include "strbuf.h"
+#include "url.h"
+#include "exec_cmd.h"
+#include "run-command.h"
+#include "vcs-svn/svndump.h"
+#include "notes.h"
+#include "argv-array.h"
+
+static const char *url;
+static int dump_from_file;
+static const char *private_ref;
+static const char *remote_ref = "refs/heads/master";
+static const char *marksfilename, *notes_ref;
+struct rev_note { unsigned int rev_nr; };
+
+static int cmd_capabilities(const char *line);
+static int cmd_import(const char *line);
+static int cmd_list(const char *line);
+
+typedef int (*input_command_handler)(const char *);
+struct input_command_entry {
+ const char *name;
+ input_command_handler fn;
+ unsigned char batchable; /* whether the command starts or is part of a batch */
+};
+
+static const struct input_command_entry input_command_list[] = {
+ { "capabilities", cmd_capabilities, 0 },
+ { "import", cmd_import, 1 },
+ { "list", cmd_list, 0 },
+ { NULL, NULL }
+};
+
+static int cmd_capabilities(const char *line)
+{
+ printf("import\n");
+ printf("bidi-import\n");
+ printf("refspec %s:%s\n\n", remote_ref, private_ref);
+ fflush(stdout);
+ return 0;
+}
+
+static void terminate_batch(void)
+{
+ /* terminate a current batch's fast-import stream */
+ printf("done\n");
+ fflush(stdout);
+}
+
+/* NOTE: 'ref' refers to a git reference, while 'rev' refers to a svn revision. */
+static char *read_ref_note(const unsigned char sha1[20])
+{
+ const unsigned char *note_sha1;
+ char *msg = NULL;
+ unsigned long msglen;
+ enum object_type type;
+
+ init_notes(NULL, notes_ref, NULL, 0);
+ if (!(note_sha1 = get_note(NULL, sha1)))
+ return NULL; /* note tree not found */
+ if (!(msg = read_sha1_file(note_sha1, &type, &msglen)))
+ error("Empty notes tree. %s", notes_ref);
+ else if (!msglen || type != OBJ_BLOB) {
+ error("Note contains unusable content. "
+ "Is something else using this notes tree? %s", notes_ref);
+ free(msg);
+ msg = NULL;
+ }
+ free_notes(NULL);
+ return msg;
+}
+
+static int parse_rev_note(const char *msg, struct rev_note *res)
+{
+ const char *key, *value, *end;
+ size_t len;
+
+ while (*msg) {
+ end = strchr(msg, '\n');
+ len = end ? end - msg : strlen(msg);
+
+ key = "Revision-number: ";
+ if (!prefixcmp(msg, key)) {
+ long i;
+ char *end;
+ value = msg + strlen(key);
+ i = strtol(value, &end, 0);
+ if (end == value || i < 0 || i > UINT32_MAX)
+ return -1;
+ res->rev_nr = i;
+ }
+ msg += len + 1;
+ }
+ return 0;
+}
+
+static int note2mark_cb(const unsigned char *object_sha1,
+ const unsigned char *note_sha1, char *note_path,
+ void *cb_data)
+{
+ FILE *file = (FILE *)cb_data;
+ char *msg;
+ unsigned long msglen;
+ enum object_type type;
+ struct rev_note note;
+
+ if (!(msg = read_sha1_file(note_sha1, &type, &msglen)) ||
+ !msglen || type != OBJ_BLOB) {
+ free(msg);
+ return 1;
+ }
+ if (parse_rev_note(msg, &note))
+ return 2;
+ if (fprintf(file, ":%d %s\n", note.rev_nr, sha1_to_hex(object_sha1)) < 1)
+ return 3;
+ return 0;
+}
+
+static void regenerate_marks(void)
+{
+ int ret;
+ FILE *marksfile = fopen(marksfilename, "w+");
+
+ if (!marksfile)
+ die_errno("Couldn't create mark file %s.", marksfilename);
+ ret = for_each_note(NULL, 0, note2mark_cb, marksfile);
+ if (ret)
+ die("Regeneration of marks failed, returned %d.", ret);
+ fclose(marksfile);
+}
+
+static void check_or_regenerate_marks(int latestrev)
+{
+ FILE *marksfile;
+ struct strbuf sb = STRBUF_INIT;
+ struct strbuf line = STRBUF_INIT;
+ int found = 0;
+
+ if (latestrev < 1)
+ return;
+
+ init_notes(NULL, notes_ref, NULL, 0);
+ marksfile = fopen(marksfilename, "r");
+ if (!marksfile) {
+ regenerate_marks();
+ marksfile = fopen(marksfilename, "r");
+ if (!marksfile)
+ die_errno("cannot read marks file %s!", marksfilename);
+ fclose(marksfile);
+ } else {
+ strbuf_addf(&sb, ":%d ", latestrev);
+ while (strbuf_getline(&line, marksfile, '\n') != EOF) {
+ if (!prefixcmp(line.buf, sb.buf)) {
+ found++;
+ break;
+ }
+ }
+ fclose(marksfile);
+ if (!found)
+ regenerate_marks();
+ }
+ free_notes(NULL);
+ strbuf_release(&sb);
+ strbuf_release(&line);
+}
+
+static int cmd_import(const char *line)
+{
+ int code;
+ int dumpin_fd;
+ char *note_msg;
+ unsigned char head_sha1[20];
+ unsigned int startrev;
+ struct argv_array svndump_argv = ARGV_ARRAY_INIT;
+ struct child_process svndump_proc;
+
+ if (read_ref(private_ref, head_sha1))
+ startrev = 0;
+ else {
+ note_msg = read_ref_note(head_sha1);
+ if(note_msg == NULL) {
+ warning("No note found for %s.", private_ref);
+ startrev = 0;
+ } else {
+ struct rev_note note = { 0 };
+ if (parse_rev_note(note_msg, &note))
+ die("Revision number couldn't be parsed from note.");
+ startrev = note.rev_nr + 1;
+ free(note_msg);
+ }
+ }
+ check_or_regenerate_marks(startrev - 1);
+
+ if (dump_from_file) {
+ dumpin_fd = open(url, O_RDONLY);
+ if(dumpin_fd < 0)
+ die_errno("Couldn't open svn dump file %s.", url);
+ } else {
+ memset(&svndump_proc, 0, sizeof(struct child_process));
+ svndump_proc.out = -1;
+ argv_array_push(&svndump_argv, "svnrdump");
+ argv_array_push(&svndump_argv, "dump");
+ argv_array_push(&svndump_argv, url);
+ argv_array_pushf(&svndump_argv, "-r%u:HEAD", startrev);
+ svndump_proc.argv = svndump_argv.argv;
+
+ code = start_command(&svndump_proc);
+ if (code)
+ die("Unable to start %s, code %d", svndump_proc.argv[0], code);
+ dumpin_fd = svndump_proc.out;
+ }
+ /* setup marks file import/export */
+ printf("feature import-marks-if-exists=%s\n"
+ "feature export-marks=%s\n", marksfilename, marksfilename);
+
+ svndump_init_fd(dumpin_fd, STDIN_FILENO);
+ svndump_read(url, private_ref, notes_ref);
+ svndump_deinit();
+ svndump_reset();
+
+ close(dumpin_fd);
+ if (!dump_from_file) {
+ code = finish_command(&svndump_proc);
+ if (code)
+ warning("%s, returned %d", svndump_proc.argv[0], code);
+ argv_array_clear(&svndump_argv);
+ }
+
+ return 0;
+}
+
+static int cmd_list(const char *line)
+{
+ printf("? %s\n\n", remote_ref);
+ fflush(stdout);
+ return 0;
+}
+
+static int do_command(struct strbuf *line)
+{
+ const struct input_command_entry *p = input_command_list;
+ static struct string_list batchlines = STRING_LIST_INIT_DUP;
+ static const struct input_command_entry *batch_cmd;
+ /*
+ * commands can be grouped together in a batch.
+ * Batches are ended by \n. If no batch is active the program ends.
+ * During a batch all lines are buffered and passed to the handler function
+ * when the batch is terminated.
+ */
+ if (line->len == 0) {
+ if (batch_cmd) {
+ struct string_list_item *item;
+ for_each_string_list_item(item, &batchlines)
+ batch_cmd->fn(item->string);
+ terminate_batch();
+ batch_cmd = NULL;
+ string_list_clear(&batchlines, 0);
+ return 0; /* end of the batch, continue reading other commands. */
+ }
+ return 1; /* end of command stream, quit */
+ }
+ if (batch_cmd) {
+ if (prefixcmp(batch_cmd->name, line->buf))
+ die("Active %s batch interrupted by %s", batch_cmd->name, line->buf);
+ /* buffer batch lines */
+ string_list_append(&batchlines, line->buf);
+ return 0;
+ }
+
+ for (p = input_command_list; p->name; p++) {
+ if (!prefixcmp(line->buf, p->name) && (strlen(p->name) == line->len ||
+ line->buf[strlen(p->name)] == ' ')) {
+ if (p->batchable) {
+ batch_cmd = p;
+ string_list_append(&batchlines, line->buf);
+ return 0;
+ }
+ return p->fn(line->buf);
+ }
+ }
+ die("Unknown command '%s'\n", line->buf);
+ return 0;
+}
+
+int main(int argc, const char **argv)
+{
+ struct strbuf buf = STRBUF_INIT, url_sb = STRBUF_INIT,
+ private_ref_sb = STRBUF_INIT, marksfilename_sb = STRBUF_INIT,
+ notes_ref_sb = STRBUF_INIT;
+ static struct remote *remote;
+ const char *url_in;
+
+ git_extract_argv0_path(argv[0]);
+ setup_git_directory();
+ if (argc < 2 || argc > 3) {
+ usage("git-remote-svn <remote-name> [<url>]");
+ return 1;
+ }
+
+ remote = remote_get(argv[1]);
+ url_in = (argc == 3) ? argv[2] : remote->url[0];
+
+ if (!prefixcmp(url_in, "file://")) {
+ dump_from_file = 1;
+ url = url_decode(url_in + sizeof("file://")-1);
+ } else {
+ dump_from_file = 0;
+ end_url_with_slash(&url_sb, url_in);
+ url = url_sb.buf;
+ }
+
+ strbuf_addf(&private_ref_sb, "refs/svn/%s/master", remote->name);
+ private_ref = private_ref_sb.buf;
+
+ strbuf_addf(&notes_ref_sb, "refs/notes/%s/revs", remote->name);
+ notes_ref = notes_ref_sb.buf;
+
+ strbuf_addf(&marksfilename_sb, "%s/info/fast-import/remote-svn/%s.marks",
+ get_git_dir(), remote->name);
+ marksfilename = marksfilename_sb.buf;
+
+ while (1) {
+ if (strbuf_getline(&buf, stdin, '\n') == EOF) {
+ if (ferror(stdin))
+ die("Error reading command stream");
+ else
+ die("Unexpected end of command stream");
+ }
+ if (do_command(&buf))
+ break;
+ strbuf_reset(&buf);
+ }
+
+ strbuf_release(&buf);
+ strbuf_release(&url_sb);
+ strbuf_release(&private_ref_sb);
+ strbuf_release(&notes_ref_sb);
+ strbuf_release(&marksfilename_sb);
+ return 0;
+}
View
84 t/t9020-remote-svn.sh
@@ -0,0 +1,84 @@
+#!/bin/sh
+
+test_description='tests remote-svn'
+
+. ./test-lib.sh
+
+MARKSPATH=.git/info/fast-import/remote-svn
+
+if ! test_have_prereq PYTHON
+then
+ skip_all='skipping remote-svn tests, python not available'
+ test_done
+fi
+
+# We override svnrdump by placing a symlink to the svnrdump-emulator in .
+export PATH="$HOME:$PATH"
+ln -sf $GIT_BUILD_DIR/contrib/svn-fe/svnrdump_sim.py "$HOME/svnrdump"
+
+init_git () {
+ rm -fr .git &&
+ git init &&
+ #git remote add svnsim testsvn::sim:///$TEST_DIRECTORY/t9020/example.svnrdump
+ # let's reuse an exisiting dump file!?
+ git remote add svnsim testsvn::sim://$TEST_DIRECTORY/t9154/svn.dump
+ git remote add svnfile testsvn::file://$TEST_DIRECTORY/t9154/svn.dump
+}
+
+if test -e "$GIT_BUILD_DIR/git-remote-testsvn"
+then
+ test_set_prereq REMOTE_SVN
+fi
+
+test_debug '
+ git --version
+ which git
+ which svnrdump
+'
+
+test_expect_success REMOTE_SVN 'simple fetch' '
+ init_git &&
+ git fetch svnsim &&
+ test_cmp .git/refs/svn/svnsim/master .git/refs/remotes/svnsim/master &&
+ cp .git/refs/remotes/svnsim/master master.good
+'
+
+test_debug '
+ cat .git/refs/svn/svnsim/master
+ cat .git/refs/remotes/svnsim/master
+'
+
+test_expect_success REMOTE_SVN 'repeated fetch, nothing shall change' '
+ git fetch svnsim &&
+ test_cmp master.good .git/refs/remotes/svnsim/master
+'
+
+test_expect_success REMOTE_SVN 'fetch from a file:// url gives the same result' '
+ git fetch svnfile
+'
+
+test_expect_failure REMOTE_SVN 'the sha1 differ because the git-svn-id line in the commit msg contains the url' '
+ test_cmp .git/refs/remotes/svnfile/master .git/refs/remotes/svnsim/master
+'
+
+test_expect_success REMOTE_SVN 'mark-file regeneration' '
+ # filter out any other marks, that can not be regenerated. Only up to 3 digit revisions are allowed here
+ grep ":[0-9]\{1,3\} " $MARKSPATH/svnsim.marks > $MARKSPATH/svnsim.marks.old &&
+ rm $MARKSPATH/svnsim.marks &&
+ git fetch svnsim &&
+ test_cmp $MARKSPATH/svnsim.marks.old $MARKSPATH/svnsim.marks
+'
+
+test_expect_success REMOTE_SVN 'incremental imports must lead to the same head' '
+ export SVNRMAX=3 &&
+ init_git &&
+ git fetch svnsim &&
+ test_cmp .git/refs/svn/svnsim/master .git/refs/remotes/svnsim/master &&
+ unset SVNRMAX &&
+ git fetch svnsim &&
+ test_cmp master.good .git/refs/remotes/svnsim/master
+'
+
+test_debug 'git branch -a'
+
+test_done
View
2  test-svn-fe.c
@@ -40,7 +40,7 @@ int main(int argc, char *argv[])
if (argc == 2) {
if (svndump_init(argv[1]))
return 1;
- svndump_read(NULL);
+ svndump_read(NULL, "refs/heads/master", "refs/notes/svn/revs");
svndump_deinit();
svndump_reset();
return 0;
View
44 transport-helper.c
@@ -10,6 +10,7 @@
#include "string-list.h"
#include "thread-utils.h"
#include "sigchain.h"
+#include "argv-array.h"
static int debug;
@@ -19,6 +20,7 @@ struct helper_data {
FILE *out;
unsigned fetch : 1,
import : 1,
+ bidi_import : 1,
export : 1,
option : 1,
push : 1,
@@ -101,6 +103,7 @@ static void do_take_over(struct transport *transport)
static struct child_process *get_helper(struct transport *transport)
{
struct helper_data *data = transport->data;
+ struct argv_array argv = ARGV_ARRAY_INIT;
struct strbuf buf = STRBUF_INIT;
struct child_process *helper;
const char **refspecs = NULL;
@@ -122,11 +125,10 @@ static struct child_process *get_helper(struct transport *transport)
helper->in = -1;
helper->out = -1;
helper->err = 0;
- helper->argv = xcalloc(4, sizeof(*helper->argv));
- strbuf_addf(&buf, "git-remote-%s", data->name);
- helper->argv[0] = strbuf_detach(&buf, NULL);
- helper->argv[1] = transport->remote->name;
- helper->argv[2] = remove_ext_force(transport->url);
+ argv_array_pushf(&argv, "git-remote-%s", data->name);
+ argv_array_push(&argv, transport->remote->name);
+ argv_array_push(&argv, remove_ext_force(transport->url));
+ helper->argv = argv_array_detach(&argv, NULL);
helper->git_cmd = 0;
helper->silent_exec_failure = 1;
@@ -178,6 +180,8 @@ static struct child_process *get_helper(struct transport *transport)
data->push = 1;
else if (!strcmp(capname, "import"))
data->import = 1;
+ else if (!strcmp(capname, "bidi-import"))
+ data->bidi_import = 1;
else if (!strcmp(capname, "export"))
data->export = 1;
else if (!data->refspecs && !prefixcmp(capname, "refspec ")) {
@@ -241,8 +245,7 @@ static int disconnect_helper(struct transport *transport)
close(data->helper->out);
fclose(data->out);
res = finish_command(data->helper);
- free((char *)data->helper->argv[0]);
- free(data->helper->argv);
+ argv_array_free_detached(data->helper->argv);
free(data->helper);
data->helper = NULL;
}
@@ -376,14 +379,23 @@ static int fetch_with_fetch(struct transport *transport,
static int get_importer(struct transport *transport, struct child_process *fastimport)
{
struct child_process *helper = get_helper(transport);
+ struct helper_data *data = transport->data;
+ struct argv_array argv = ARGV_ARRAY_INIT;
+ int cat_blob_fd, code;
memset(fastimport, 0, sizeof(*fastimport));
fastimport->in = helper->out;
- fastimport->argv = xcalloc(5, sizeof(*fastimport->argv));
- fastimport->argv[0] = "fast-import";
- fastimport->argv[1] = "--quiet";
+ argv_array_push(&argv, "fast-import");
+ argv_array_push(&argv, debug ? "--stats" : "--quiet");
+ if (data->bidi_import) {
+ cat_blob_fd = xdup(helper->in);
+ argv_array_pushf(&argv, "--cat-blob-fd=%d", cat_blob_fd);
+ }
+ fastimport->argv = argv.argv;
fastimport->git_cmd = 1;
- return start_command(fastimport);
+
+ code = start_command(fastimport);
+ return code;
}
static int get_exporter(struct transport *transport,
@@ -438,11 +450,17 @@ static int fetch_with_import(struct transport *transport,
}
write_constant(data->helper->in, "\n");
+ /*
+ * remote-helpers that advertise the bidi-import capability are required to
+ * buffer the complete batch of import commands until this newline before
+ * sending data to fast-import.
+ * These helpers read back data from fast-import on their stdin, which could
+ * be mixed with import commands, otherwise.
+ */
if (finish_command(&fastimport))
die("Error while running fast-import");
- free(fastimport.argv);
- fastimport.argv = NULL;
+ argv_array_free_detached(fastimport.argv);
/*
* The fast-import stream of a remote helper that advertises
View
36 vcs-svn/fast_export.c
@@ -3,8 +3,7 @@
* See LICENSE for details.
*/
-#include "git-compat-util.h"
-#include "strbuf.h"
+#include "cache.h"
#include "quote.h"
#include "fast_export.h"
#include "repo_tree.h"
@@ -68,11 +67,33 @@ void fast_export_modify(const char *path, uint32_t mode, const char *dataref)
putchar('\n');
}
+void fast_export_begin_note(uint32_t revision, const char *author,
+ const char *log, unsigned long timestamp, const char *note_ref)
+{
+ static int firstnote = 1;
+ size_t loglen = strlen(log);
+ printf("commit %s\n", note_ref);
+ printf("committer %s <%s@%s> %ld +0000\n", author, author, "local", timestamp);
+ printf("data %"PRIuMAX"\n", (uintmax_t)loglen);
+ fwrite(log, loglen, 1, stdout);
+ if (firstnote) {
+ if (revision > 1)
+ printf("from %s^0", note_ref);
+ firstnote = 0;
+ }
+ fputc('\n', stdout);
+}
+
+void fast_export_note(const char *committish, const char *dataref)
+{
+ printf("N %s %s\n", dataref, committish);
+}
+
static char gitsvnline[MAX_GITSVN_LINE_LEN];
void fast_export_begin_commit(uint32_t revision, const char *author,
const struct strbuf *log,
const char *uuid, const char *url,
- unsigned long timestamp)
+ unsigned long timestamp, const char *local_ref)
{
static const struct strbuf empty = STRBUF_INIT;
if (!log)
@@ -84,7 +105,7 @@ void fast_export_begin_commit(uint32_t revision, const char *author,
} else {
*gitsvnline = '\0';
}
- printf("commit refs/heads/master\n");
+ printf("commit %s\n", local_ref);
printf("mark :%"PRIu32"\n", revision);
printf("committer %s <%s@%s> %ld +0000\n",
*author ? author : "nobody",
@@ -222,6 +243,13 @@ static long apply_delta(off_t len, struct line_buffer *input,
return ret;
}
+void fast_export_buf_to_data(const struct strbuf *data)
+{
+ printf("data %"PRIuMAX"\n", (uintmax_t)data->len);
+ fwrite(data->buf, data->len, 1, stdout);
+ fputc('\n', stdout);
+}
+
void fast_export_data(uint32_t mode, off_t len, struct line_buffer *input)
{
assert(len >= 0);
View
8 vcs-svn/fast_export.h
@@ -9,11 +9,15 @@ void fast_export_deinit(void);
void fast_export_delete(const char *path);
void fast_export_modify(const char *path, uint32_t mode, const char *dataref);
+void fast_export_note(const char *committish, const char *dataref);
+void fast_export_begin_note(uint32_t revision, const char *author,
+ const char *log, unsigned long timestamp, const char *note_ref);
void fast_export_begin_commit(uint32_t revision, const char *author,
- const struct strbuf *log, const char *uuid,
- const char *url, unsigned long timestamp);
+ const struct strbuf *log, const char *uuid,const char *url,
+ unsigned long timestamp, const char *local_ref);
void fast_export_end_commit(uint32_t revision);
void fast_export_data(uint32_t mode, off_t len, struct line_buffer *input);
+void fast_export_buf_to_data(const struct strbuf *data);
void fast_export_blob_delta(uint32_t mode,
uint32_t old_mode, const char *old_data,
off_t len, struct line_buffer *input);
View
61 vcs-svn/svndump.c
@@ -48,7 +48,7 @@ static struct {
static struct {
uint32_t revision;
unsigned long timestamp;
- struct strbuf log, author;
+ struct strbuf log, author, note;
} rev_ctx;
static struct {
@@ -77,6 +77,7 @@ static void reset_rev_ctx(uint32_t revision)
rev_ctx.timestamp = 0;
strbuf_reset(&rev_ctx.log);
strbuf_reset(&rev_ctx.author);
+ strbuf_reset(&rev_ctx.note);
}
static void reset_dump_ctx(const char *url)
@@ -299,22 +300,29 @@ static void handle_node(void)
node_ctx.text_length, &input);
}
-static void begin_revision(void)
+static void begin_revision(const char *remote_ref)
{
if (!rev_ctx.revision) /* revision 0 gets no git commit. */
return;
fast_export_begin_commit(rev_ctx.revision, rev_ctx.author.buf,
&rev_ctx.log, dump_ctx.uuid.buf, dump_ctx.url.buf,
- rev_ctx.timestamp);
+ rev_ctx.timestamp, remote_ref);
}
-static void end_revision(void)
+static void end_revision(const char *note_ref)
{
- if (rev_ctx.revision)
+ struct strbuf mark = STRBUF_INIT;
+ if (rev_ctx.revision) {
fast_export_end_commit(rev_ctx.revision);
+ fast_export_begin_note(rev_ctx.revision, "remote-svn",
+ "Note created by remote-svn.", rev_ctx.timestamp, note_ref);
+ strbuf_addf(&mark, ":%"PRIu32, rev_ctx.revision);
+ fast_export_note(mark.buf, "inline");
+ fast_export_buf_to_data(&rev_ctx.note);
+ }
}
-void svndump_read(const char *url)
+void svndump_read(const char *url, const char *local_ref, const char *notes_ref)
{
char *val;
char *t;
@@ -353,11 +361,12 @@ void svndump_read(const char *url)
if (active_ctx == NODE_CTX)
handle_node();
if (active_ctx == REV_CTX)
- begin_revision();
+ begin_revision(local_ref);
if (active_ctx != DUMP_CTX)
- end_revision();
+ end_revision(notes_ref);
active_ctx = REV_CTX;
reset_rev_ctx(atoi(val));
+ strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
case sizeof("Node-path"):
if (constcmp(t, "Node-"))
@@ -366,13 +375,15 @@ void svndump_read(const char *url)
if (active_ctx == NODE_CTX)
handle_node();
if (active_ctx == REV_CTX)
- begin_revision();
+ begin_revision(local_ref);
active_ctx = NODE_CTX;
reset_node_ctx(val);
+ strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
}
if (constcmp(t + strlen("Node-"), "kind"))
continue;
+ strbuf_addf(&rev_ctx.note, "%s\n", t);
if (!strcmp(val, "dir"))
node_ctx.type = REPO_MODE_DIR;
else if (!strcmp(val, "file"))
@@ -383,6 +394,7 @@ void svndump_read(const char *url)
case sizeof("Node-action"):
if (constcmp(t, "Node-action"))
continue;
+ strbuf_addf(&rev_ctx.note, "%s\n", t);
if (!strcmp(val, "delete")) {
node_ctx.action = NODEACT_DELETE;
} else if (!strcmp(val, "add")) {
@@ -401,11 +413,13 @@ void svndump_read(const char *url)
continue;
strbuf_reset(&node_ctx.src);
strbuf_addstr(&node_ctx.src, val);
+ strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
case sizeof("Node-copyfrom-rev"):
if (constcmp(t, "Node-copyfrom-rev"))
continue;
node_ctx.srcRev = atoi(val);
+ strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
case sizeof("Text-content-length"):
if (constcmp(t, "Text") && constcmp(t, "Prop"))
@@ -463,25 +477,40 @@ void svndump_read(const char *url)
if (active_ctx == NODE_CTX)
handle_node();
if (active_ctx == REV_CTX)
- begin_revision();
+ begin_revision(local_ref);
if (active_ctx != DUMP_CTX)
- end_revision();
+ end_revision(notes_ref);
}
-int svndump_init(const char *filename)
+static void init(int report_fd)
{
- if (buffer_init(&input, filename))
- return error("cannot open %s: %s", filename, strerror(errno));
- fast_export_init(REPORT_FILENO);
+ fast_export_init(report_fd);
strbuf_init(&dump_ctx.uuid, 4096);
strbuf_init(&dump_ctx.url, 4096);
strbuf_init(&rev_ctx.log, 4096);
strbuf_init(&rev_ctx.author, 4096);
+ strbuf_init(&rev_ctx.note, 4096);
strbuf_init(&node_ctx.src, 4096);
strbuf_init(&node_ctx.dst, 4096);
reset_dump_ctx(NULL);
reset_rev_ctx(0);
reset_node_ctx(NULL);
+ return;
+}
+
+int svndump_init(const char *filename)
+{
+ if (buffer_init(&input, filename))
+ return error("cannot open %s: %s", filename ? filename : "NULL", strerror(errno));
+ init(REPORT_FILENO);
+ return 0;
+}
+
+int svndump_init_fd(int in_fd, int back_fd)
+{
+ if(buffer_fdinit(&input, xdup(in_fd)))
+ return error("cannot open fd %d: %s", in_fd, strerror(errno));
+ init(xdup(back_fd));
return 0;
}
@@ -492,6 +521,8 @@ void svndump_deinit(void)
reset_rev_ctx(0);
reset_node_ctx(NULL);
strbuf_release(&rev_ctx.log);
+ strbuf_release(&rev_ctx.author);
+ strbuf_release(&rev_ctx.note);
strbuf_release(&node_ctx.src);
strbuf_release(&node_ctx.dst);
if (buffer_deinit(&input))
View
3  vcs-svn/svndump.h
@@ -2,7 +2,8 @@
#define SVNDUMP_H_
int svndump_init(const char *filename);
-void svndump_read(const char *url);
+int svndump_init_fd(int in_fd, int back_fd);
+void svndump_read(const char *url, const char *local_ref, const char *notes_ref);
void svndump_deinit(void);
void svndump_reset(void);
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